package com.lj.framework.security.filter;

import cn.hutool.core.util.ObjectUtil;
import com.lj.common.core.model.vo.LoginUser;
import com.lj.common.utils.security.SecurityUtil;
import com.lj.framework.web.service.TokenService;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.annotation.Nonnull;
import javax.annotation.Resource;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


/**
 * token过滤器 验证token有效性
 *
 * @author 小李飞刀
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Resource
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(@Nonnull HttpServletRequest request, @Nonnull HttpServletResponse response, @Nonnull FilterChain chain) throws ServletException, IOException {
        LoginUser loginUser = tokenService.getLoginUser(request);
        if (ObjectUtil.isNotNull(loginUser) && ObjectUtil.isNull(SecurityUtil.getAuthentication())) {
            tokenService.verifyToken(loginUser);
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}
